Function netconn_getaddr

components/net/lwip/lwip-1.4.1/src/api/api_lib.c:134–153

* Get the local or remote IP address and port of a netconn. * For RAW netconns, this returns the protocol instead of a port! * * @param conn the netconn to query * @param addr a pointer to which to save the IP address * @param port a pointer to which to save the port (or protocol for RAW) * @param local 1 to get the local IP address, 0 to get the remote one * @return ERR_CONN for invalid co

 *         ERR_OK if the information was retrieved
 */
err_t
netconn_getaddr(struct netconn *conn, ip_addr_t *addr, u16_t *port, u8_t local)
{
  struct api_msg msg;
  err_t err;

  LWIP_ERROR("netconn_getaddr: invalid conn", (conn != NULL), return ERR_ARG;);
  LWIP_ERROR("netconn_getaddr: invalid addr", (addr != NULL), return ERR_ARG;);
  LWIP_ERROR("netconn_getaddr: invalid port", (port != NULL), return ERR_ARG;);

  msg.function = do_getaddr;
  msg.msg.conn = conn;
  msg.msg.msg.ad.ipaddr = addr;
  msg.msg.msg.ad.port = port;
  msg.msg.msg.ad.local = local;
  err = TCPIP_APIMSG(&msg);

  NETCONN_SET_SAFE_ERR(conn, err);
  return err;
}

/**
 * Bind a netconn to a specific local IP address and port.